The relationship between preserved ratio impaired spirometry and mortality in the myocardial infarction survivors: a population-based cohort study.

ABSTRACT:

Introduction

Preserved ratio impaired spirometry (PRISm) is a subtype of pulmonary function abnormality which is characterized by a proportional reduction in non-obstructive expiratory lung volume. Currently, no studies have shown a relationship between PRISm and mortality in myocardial infarction (MI) survivors.

Methods

We used cohort data from U.S. adults who attended the National Health and Nutrition Examination Survey (NHANES) from 2007 to 2012. According to the ratio of forced expiratory volume in the first second (FEV₁) to forced vital capacity (FVC), we divided lung function into normal spirometry (FEV₁/ FVC) ≥ 70%, FEV₁ ≥ 80%), PRISm (FEV₁/FVC ≥ 70%, FEV₁ < 80%) and obstructive spirometry (FEV₁/FVC < 7

SUBMITTER: Li D 

PROVIDER: S-EPMC10311719 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature